/**
 * ThreeDShape is an interface containing the method headers for calculating
 * the surface area and volume and three dimensional shapes
 * 
 * @author (Jeff Thomas) 
 * @version (11.19.2007)
 * @course (CSC 131-2)
 */
public interface ThreeDShape {
    public double calcSurfaceArea();
    public double calcVolume();
}